Cleaning and prefilming agent and preparation method and application thereof

A technology of pre-filming agent and inorganic film, which is applied in the field of water treatment agent, preparation of cleaning pre-filming agent, and cleaning pre-filming agent, can solve the problems of environmental eutrophication pollution, complicated pre-filming treatment process, etc. The effect of strong anti-fouling effect and strong corrosion resistance

Active Publication Date: 2018-10-02
XIAN JINGDA CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention: the cleaning and pre-film treatment process of traditional industrial circulating water is complicated; the conventional inorganic phosphorus-zinc sy

Method used

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  • Cleaning and prefilming agent and preparation method and application thereof
  • Cleaning and prefilming agent and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example 1

[0024] This embodiment provides a cleaning pre-filming agent used in a circulating cooling water system, and the mass percentage of each component is as follows:

[0025] Salicylic acid: 20%;

[0026] Sodium gluconate: 15%;

[0027] Polyepoxysuccinic acid: 10%;

[0028] Zinc sulfate monohydrate: 4%;

[0029] Disodium ethylenediaminetetraacetic acid: 3%;

[0030] Potassium hydroxide: 25%;

[0031] Deionized water: 23%.

[0032] The preparation method of the cleaning pre-filming agent in this embodiment:

[0033] First add 4kg of zinc sulfate monohydrate, 15kg of sodium gluconate, 3kg of disodium ethylenediaminetetraacetate and 23kg of deionized water into the stirred reactor, start stirring, and after all are dissolved, add 20kg of salicylic acid and 10kg of poly The epoxy succinic acid is stirred uniformly, and finally 25 kg potassium hydroxide is added to adjust the pH to neutral, and the cleaning pre-filming agent is obtained by stirring for 20-30 minutes.

Example Embodiment

[0034] Example 2

[0035] This embodiment provides a cleaning pre-filming agent used in a circulating cooling water system, and the mass percentage of each component is as follows:

[0036] Tartaric acid: 18%;

[0037] Sodium gluconate: 10%;

[0038] Polyepoxysuccinic acid: 8%;

[0039] Zinc chloride: 5%;

[0040] Sodium imino disuccinate: 2%;

[0041] Sodium hydroxide: 23%;

[0042] Deionized water: 34%.

[0043] The preparation method of the cleaning pre-filming agent in this embodiment:

[0044] First add 5kg of zinc chloride, 10kg of sodium gluconate, 2kg of sodium iminodisuccinate and 34kg of deionized water into the stirred reactor, start stirring, and after all are dissolved, add 18kg of tartaric acid and 8kg of polyepoxysuccinic acid in sequence Stir uniformly, finally add 23kg potassium hydroxide to adjust the pH to neutral, and stir for 20-30 minutes to obtain the cleaning pre-filming agent.

Example Embodiment

[0045] Example 3

[0046] This embodiment provides a cleaning pre-filming agent used in a circulating cooling water system, and the mass percentage of each component is as follows:

[0047] Citric acid: 15%;

[0048] Sodium gluconate: 20%;

[0049] Polyaspartic acid: 10%;

[0050] Zinc sulfate monohydrate: 8%;

[0051] Sodium triacetate: 4%;

[0052] Sodium hydroxide: 18%;

[0053] Deionized water: 25%.

[0054] The preparation method of the cleaning pre-filming agent in this embodiment:

[0055] First add 8kg of zinc sulfate monohydrate, 20kg of sodium gluconate, 4kg of sodium triacetate and 25kg of deionized water into the stirred reactor, start stirring, and when all are dissolved, add 15kg of citric acid and 10kg of polyaspartic acid in sequence Stir uniformly, finally add 18 kg of sodium hydroxide to adjust the pH to neutral, and stir for 20-30 min to obtain the cleaning pre-filming agent.

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Abstract

The invention discloses a cleaning and prefilming agent which is used for dissolving dirt on metal surfaces and forming inorganic films and organic films on the metal surfaces, and the inorganic filmsand the organic films intersect each other on the metal surfaces to form compact inorganic organic composite films. The ingredients of the cleaning and prefilming agent comprise organic carboxylic acid and salts thereof, sodium gluconate, inorganic zinc salt, organic acid polymers, a chelating agent, inorganic base and deionized water, and the weight percentage of all the ingredients in the cleaning and prefilming agent is 5-30% of organic carboxylic acid and salts thereof, 10-20% of sodium gluconate, 3-10% of inorganic zinc salt, 5-20% of organic acid polymers, 1-5% of the chelating agent, 10-30% of inorganic base and the balance deionized water. By means of the cleaning and prefilming agent, the purposes of protecting equipment and prolonging the equipment life are achieved, when the cleaning and prefilming agent is used for circulating cold water treatment, cleaning and prefilming can be finished at one time, adjustment of the system pH is not needed, and the cleaning and prefilming procedure is simplified.

Description

technical field [0001] The invention belongs to the technical field of circulating water treatment, and relates to water treatment agents, in particular to a cleaning and pre-filming agent. The invention also provides the preparation method of the cleaning pre-film agent and its application in the treatment of circulating cooling water. Background technique [0002] The consumption of industrial cooling water accounts for a relatively large proportion of its total water consumption, and the method of circulating cooling and increasing the concentration ratio is usually used to save water consumption. However, in the process of circulating cooling, due to the increase of water temperature and the evaporation of water, various inorganic ions With the concentration of organic matter, the alkalinity, hardness and pH value of the water naturally rise, causing problems such as inorganic salt precipitation, corrosion and bacteria and algae growth in water supply pipes and water equ...

Claims

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Application Information

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IPC IPC(8): C23G1/26C23F11/08
CPCC23F11/08C23G1/26
Inventor 李佐东张小凤孟丽杨赞
Owner XIAN JINGDA CHEM
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